You are in a discovery session with a new client.

The correct answer is C . A client’s existing support model directly affects the Governance Session because governance defines how Slack is administered, who owns specific operational responsibilities, how requests are routed, how issues are escalated, and which roles are accountable for supporting users. If the current support model is centralized through IT, distributed through business-unit admins, handled through a service desk, or managed informally through champions, that structure will shape the recommended admin operating model. Option A, Key Messaging, may be influenced slightly because launch communications should explain where users get help, but messaging is not the primary deliverable affected. Option B, Channel Strategy, may include help channels, but channel naming and structure are only one part of the support model. Option D, Grid Design Workshop, focuses on workspace architecture and access, not the operational support process. The support model belongs primarily to governance because it determines ownership, escalation, admin responsibilities, and sustainable post-launch operations.